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php实现websocket实时消息推送
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SocketService.php2 Z, j' k8 Z: Q# P3 F4 x
- <?php
- |' t0 s5 V2 Z% r - /** \7 c2 H" z. V# P p
- * Created by xwx, _, o8 x8 v6 r9 x! Q2 f6 r
- * Date: 2017/10/18) @4 y5 a$ g1 f) b5 \& U: L
- * Time: 14:337 c M; p# @1 T6 L) W9 d/ u5 t
- */1 w1 V5 w" m) Z
- ( i# {9 ^7 ~1 i
- class SocketService
1 J) {0 n- S" W8 d1 V - {
2 C; O% \6 H: y% D& p - private $address = '0.0.0.0';' Z* V# R7 p/ L$ x$ {; P
- private $port = 8083;" e0 _6 q2 |/ T8 ?* h
- private $_sockets;
6 M9 @; m, ~" P5 P3 Z - public function __construct($address = '', $port='')
, l4 B" u. q$ t( p - {
( Z: V0 C- U, m, s - if(!empty($address)){
% _7 U" a1 |! d - $this->address = $address; J9 J- }7 v/ X% I2 l) i. J
- }
) Q" ~+ t" U5 V) f% n& \, q - if(!empty($port)) {
( L8 C. I/ P$ F- Z8 K% a - $this->port = $port;( T! M" k; T& y6 R
- }6 e& l3 y. q2 \7 M/ S, b w
- }+ S1 Z* F$ ~1 d( n
-
3 I# E5 I2 X7 P - public function service(){
. K ` f' G9 y( M" r ?* D - //获取tcp协议号码。
; Z) n7 b+ D0 ` G - $tcp = getprotobyname("tcp");/ T# U( I8 P/ o
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);- {3 t; G- Z, h0 C, f" H0 E
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);& E6 w* J l- ]: ]1 j9 z
- if($sock < 0)
! Z/ W, ~4 ]# K9 v! f7 \! H - {' Y4 \$ w/ y# J0 E
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");5 q$ Q) P5 o, [( ]
- }
; p" ^) `+ U7 L( |1 ^4 c% M - socket_bind($sock, $this->address, $this->port);
. j) i6 t1 v: B- a R4 ~$ W - socket_listen($sock, $this->port);4 E5 M; p. W z5 l; ~4 R9 Q
- echo "listen on $this->address $this->port ... \n";& B5 O3 v# A$ v7 q) ]
- $this->_sockets = $sock;( F- A3 G n0 c
- }6 S0 ]4 h3 U- u& b" g$ }. p G8 `& [
- ( I5 p3 z7 J% a/ k$ G6 B, k1 v4 h
- public function run(){
3 C% Y4 N* d1 x( m - $this->service();; Y1 g( C! d* f2 y0 H* q, F
- $clients[] = $this->_sockets;9 E0 k% B6 [) p* m4 s1 j! ~
- while (true){
/ W4 ^2 \9 ^, W6 W( e' I - $changes = $clients;
% Y; n" H1 F9 h( d - $write = NULL;
1 [5 k9 d; j3 C' | }) r3 s - $except = NULL;
9 z6 r+ L+ e9 l" u8 E - socket_select($changes, $write, $except, NULL);
G1 h* n z5 A9 w - foreach ($changes as $key => $_sock){
0 ~0 U% n' v& o4 ^; V; G - if($this->_sockets == $_sock){ //判断是不是新接入的socket8 @+ P& b. g: ^' _) y0 S9 U1 M2 [
- if(($newClient = socket_accept($_sock)) === false){
`& Y; b Y) D8 o+ ]( ~) ` - die('failed to accept socket: '.socket_strerror($_sock)."\n");
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- $line = trim(socket_read($newClient, 1024));( H* b# a* V5 y9 m
- $this->handshaking($newClient, $line);& t7 z/ o5 U: a, v6 r9 M
- //获取client ip
0 `6 r4 P# Y' B+ t2 V# Y0 [ - socket_getpeername ($newClient, $ip);0 z8 O7 | F- C/ ^4 R L- C
- $clients[$ip] = $newClient;
( ^1 m8 M" @6 o - echo "Client ip:{$ip} \n";/ p- D( S. \' Z' ?
- echo "Client msg:{$line} \n";
1 b% d" {% C& G - } else {
( ]0 y1 ^: S9 L/ n2 r) _' K; ~ - socket_recv($_sock, $buffer, 2048, 0);0 U' v: q s* f2 F% K
- $msg = $this->message($buffer);! U( ^, c( v3 e( h: M, D
- //在这里业务代码' l* M* }0 @, r: f
- echo "{$key} clinet msg:",$msg,"\n";
3 S& y* X9 @1 U - fwrite(STDOUT, 'Please input a argument:');
' Q2 H4 O+ [6 s4 m - $response = trim(fgets(STDIN));
5 |6 j' H, ~- B - $this->send($_sock, $response);" y/ c9 a" b# l9 \$ _. Y
- echo "{$key} response to Client:".$response,"\n";
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- }
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- /**
* k$ s. e8 k, r0 c3 u- U2 u - * 握手处理, e( o" \2 |. V2 e5 A5 n- p5 c( y
- * @param $newClient socket: s2 }& I! V: ^" W
- * @return int 接收到的信息. ]' \ @) g6 \0 [6 }, \' F
- */. u; ?+ q: [* |5 g, f1 k. o
- public function handshaking($newClient, $line){
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- $headers = array();
: [8 I, j2 }/ B! W4 h# k( ^0 @9 E - $lines = preg_split("/\r\n/", $line);% L- o# |0 g/ d8 A5 t0 U5 @
- foreach($lines as $line)) W1 z& G# H- }6 ^5 {
- { J$ y/ _" q- Z7 s4 X0 T
- $line = chop($line);% S! H: ^. q% g/ b. t
- if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
3 o. X' N* U/ N* H" k h k$ g - {" V7 N1 n6 _, g! ^' L# X" ^
- $headers[$matches[1]] = $matches[2];& |$ Q' R" _% {
- }& L0 z7 V. _" e S; @+ [
- }
4 E2 { C/ z e4 f - $secKey = $headers['Sec-WebSocket-Key'];
5 n% Q4 m- F' ^8 \) } - $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
: v: `; \+ T9 R. a& _/ O! g - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .. X/ c% D9 j* M8 f) \
- "Upgrade: websocket\r\n" .
. @- |8 L) d) J# n6 Y - "Connection: Upgrade\r\n" ., ~0 ~1 v2 [" i# S, D* Q7 i
- "WebSocket-Origin: $this->address\r\n" .
6 \! D5 V5 s0 ~1 g9 Z( N0 k# F - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".2 }! a4 R4 E: P' k
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";" Y0 a7 G7 W8 ], h7 F9 J9 B6 w
- return socket_write($newClient, $upgrade, strlen($upgrade));, w$ O! W D+ r, i# L- e
- }, w: g5 A/ l) h/ k; R0 @
- ! @! B1 j* j; J
- /**
% H: W% G- V7 H. v( D% Z - * 解析接收数据% r% F# ?+ U [; y" _$ N+ W5 V
- * @param $buffer. O1 K6 V5 h/ N4 u/ q2 y `2 L
- * @return null|string; c: B1 _# d* r$ _$ o) I8 W5 u9 v
- */( l" W; G8 k( o
- public function message($buffer){- H7 p. t3 d. l
- $len = $masks = $data = $decoded = null;
+ ?4 O1 C8 C; r5 A( c* D - $len = ord($buffer[1]) & 127;; S) C/ f* n# v
- if ($len === 126) {
- P, G. b; j( I( \ - $masks = substr($buffer, 4, 4);' }8 q) {& P8 e; X8 e3 U% c
- $data = substr($buffer, 8);
' [& a( I' u- k6 V - } else if ($len === 127) {( f. T. R0 D2 B3 ?. [. Z1 i. S- V
- $masks = substr($buffer, 10, 4);
( P, @+ Q8 H+ P. B, y+ B8 @ - $data = substr($buffer, 14);
/ q5 `( z! o& E* ^% t; \, } - } else {& }7 R/ X9 @" u2 ^2 t/ M
- $masks = substr($buffer, 2, 4);: Z2 ~$ c5 {0 A4 V: N5 f
- $data = substr($buffer, 6);6 t4 e/ |& |6 d1 @1 e5 X
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- for ($index = 0; $index < strlen($data); $index++) {
4 y3 F: \9 s9 U& `: A - $decoded .= $data[$index] ^ $masks[$index % 4];( Y; C( [1 e, q5 E
- }
( E! w. z' N) T! y4 {" r. b - return $decoded;. i4 t0 a* M$ ~# O
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- L8 _2 K9 f8 ?% n
- /**
5 u4 M' P! n8 N/ c% D$ t0 M - * 发送数据
8 d) ?/ g1 t) a Y - * @param $newClinet 新接入的socket
; Z+ b% _: o5 v8 C% Z- \* w - * @param $msg 要发送的数据9 {( A# h6 l( g( w
- * @return int|string6 Q( v: c9 L) G; k( b
- */# V4 s. y8 j/ n- p o o: b
- public function send($newClinet, $msg){: ~) R s% y: o
- $msg = $this->frame($msg);0 L/ c/ C8 H. S, |% @+ I- l
- socket_write($newClinet, $msg, strlen($msg));( n* {* }) h5 `8 L8 a2 |
- }
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! }, L2 c; d V9 M* r/ z - public function frame($s) {
6 j+ V- P% Q( l- S$ F6 U# ? - $a = str_split($s, 125);
: M$ v& p6 \- v- Z B& N6 } - if (count($a) == 1) {
; v# e( `3 |' u - return "\x81" . chr(strlen($a[0])) . $a[0];5 a. e" b" t5 x9 w& p. Z
- }
& F# J2 |5 z- T, `4 ~6 n' X - $ns = "";
7 V. ^2 k$ @3 _- V2 `, _' N - foreach ($a as $o) {
0 v: \8 I2 F2 \3 t" _% F! x - $ns .= "\x81" . chr(strlen($o)) . $o;
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- return $ns;: ^+ G6 s& {* H- U6 Z6 q/ _
- }
/ V& K' H% r" M- i- A; s -
$ b, c9 E8 B! u% G - /**
+ C) D+ {" P4 A4 O. L) z - * 关闭socket
* L" M# d t& S+ t5 H! Q - */0 N' _; u$ |. X& }& ?3 X
- public function close(){
* ?; ~* _1 j" D5 O - return socket_close($this->_sockets);
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- }
* W! h- e- ?4 m# A -
4 F- I; o L" y+ [ - $sock = new SocketService();
9 H: S) w" W- C$ v8 J0 x; s, Y - $sock->run();; G" Y$ s. t, z" |+ F" _' H& @
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复制代码 web.html9 Z: r' w% {" t
- <!doctype html>& N2 ^4 Q- R3 x' ^: W7 m
- <html lang="en">3 ]& k4 M, I4 k3 b {" q( B
- <head>0 H* c) { a, b
- <meta charset="UTF-8">3 m {3 l* _& D; [
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
$ q" Y3 h, Z, W1 x f - <title>websocket</title>: E. ]) C8 m& I" A3 A
- </head>2 E K7 I$ j, C+ D$ {; v' g
- <body>) [7 Y3 S0 @, i2 _! D' D
- <input id="text" value="">) Y4 u. h3 l* H* t; h' I( ?
- <input type="submit" value="send" onclick="start()">. |: F& S3 ~8 |1 m
- <input type="submit" value="close" onclick="close()">
7 P- D& g& r' f8 K1 B* U9 q& I+ @ - <div id="msg"></div>
+ f- I$ X0 `8 p* _ - <script>% p8 |! u5 q' b9 A* |4 B
- /**
; {; `4 n7 _: I. z) Z$ c5 p: J - 0:未连接
: l4 f+ U5 O6 ]1 Z) ~* ^0 T - 1:连接成功,可通讯: T- t7 X% v' S3 N- W0 s
- 2:正在关闭
+ f: P1 k7 G$ H$ M4 Q3 n - 3:连接已关闭或无法打开
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-
: D; x6 x/ C/ E6 Z- R8 j0 n2 Q( u; ] - //创建一个webSocket 实例
# J- V' E2 q6 k' N) U! P" d ? - var webSocket = new WebSocket("ws://192.168.31.152:8083");* o: | A) S# u6 u, J8 M; s
- / }- _$ w+ q- l' c4 [% G7 ^
- % A. M, ~1 ]9 t& Y' k
- webSocket.onerror = function (event){" ^. Q3 x9 ?; _! s3 m
- onError(event);. a+ s/ ?' {; Q& Q7 u
- };% x* ^5 D9 p3 C) H; R, Y
-
$ N0 M" q: Z% K+ x' u2 v% { - // 打开websocket
4 h. _( c! y1 z" M5 r - webSocket.onopen = function (event){" l' Q' s/ ^* L( g' Y" M; N) j3 U# l* D
- onOpen(event);
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-
; W) k( V5 H3 ^. p2 f - //监听消息
G( K/ A& X. d - webSocket.onmessage = function (event){
" t$ C# P5 S) T) Z+ U" U: w* r - onMessage(event);
. @0 j( {% b8 f& C" [ - };( @+ p4 d v! X7 c8 o `& T
- : N& o" J" T$ F$ T5 B; x8 N
-
! f& R! k# b# Z+ X8 G) h4 G - webSocket.onclose = function (event){& R9 ?9 T {4 _/ j0 _3 t
- onClose(event);
! `2 }4 Y) j3 F1 P5 K# e" t: f9 @ - }) Z/ l7 {9 S3 W) H4 C
-
/ z" K7 i! ?3 D3 \, l - //关闭监听websocket8 O+ }, a8 c" V; p. w
- function onError(event){
( c2 g/ E7 }. G9 w - document.getElementById("msg").innerHTML = "<p>close</p>";, v& O$ h9 u, ^+ ?/ n
- console.log("error"+event.data);) s/ J) F) \' `( i
- };+ s) Q* x$ x+ B- ^
- 6 [& i; a$ c; A- s: W3 {1 d: r3 O+ A
- function onOpen(event){
q1 _$ }/ y3 Y# b7 W - console.log("open:"+sockState());
, d. e& ^4 J( J6 X; H9 M( {$ t7 p - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
8 K5 i! o+ X4 E3 I/ k" v' W0 v - };
( L$ o# ^% D7 |6 l# \% @1 @ - function onMessage(event){
( B" Z9 D T5 C( p& }( F - console.log("onMessage");3 X. Y, v. h/ R4 i# D8 ^
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
& ^: i4 Q, |0 N7 ]0 V) D" f; | - };3 {8 D: @0 H) W; m) N
- 6 L; ~1 F H) `) y4 g+ e( A
- function onClose(event){! Y/ A; i- ]% S. G
- document.getElementById("msg").innerHTML = "<p>close</p>";7 }( d! Q \* k* I0 Q
- console.log("close:"+sockState());
) u& c( S$ M1 f0 _* l8 p2 L - webSocket.close();7 ^, x$ C) b* }9 E( c
- }
. G2 c$ g: _* M* \& |. ?" ]; j$ ] -
0 ]; H/ g* H& g2 H2 c - function sockState(){- G& |) Z. q( X5 {
- var status = ['未连接','连接成功,可通讯','正在关闭','连接已关闭或无法打开'];$ e1 P! _1 S( T4 D
- return status[webSocket.readyState];
. }, u) L( p2 z - }' w% h* k& P* h1 D# A5 J
- 7 k2 S% k0 }! t% d! }- a: Q
-
, i' v: C: Z8 T+ O, O -
/ ?2 K W& K" v& l8 a* H2 j8 l - function start(event){% @7 g- W7 F1 R& m1 [! \4 x
- console.log(webSocket);
3 q/ V* e/ c9 S, ~2 y- g3 L - var msg = document.getElementById('text').value;
& a, F1 k2 {: L9 ?$ ` - document.getElementById('text').value = '';! L6 U) C: c }+ _- w' \7 D1 _
- console.log("send:"+sockState());
; _! n I) _& h5 @! A; N - console.log("msg="+msg);7 m. |+ V1 z3 |/ `$ W( y
- webSocket.send("msg="+msg);
$ P# a* Z9 E; r - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
* U) [: W% P. l0 t" m - };( W! Z" i3 M, K
- 1 e1 A8 _6 g% a& t0 |% H
- function close(event){
7 D) L+ |4 E5 p6 V2 C - webSocket.close();
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- </script>- |# N& y3 M* j- @% Y( P2 W: L$ ]
- </body>
# a1 S( m+ `: E, | - </html>
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